### QPxObs_GetTWAINVersion

QPxObs_GetTWAINVersion(versionString):error
| versionString | String8 | TWAIN version
| error | Longint | Error result

### Do not use this command in QPix v3 or later

This command is preserved in QPix v3 for backward compatibility reasons. Image acquisition is now done with the acquisition commands.

Returns an encoded string value that expresses the TWAIN version number:

Characters Description

1 F = final, B = beta, A = alpha, D = development

2-3-4 Internal number

5-6 Version number

7 Update number

8 Revision number

For example, the string "F0000150" stands for the Final release of version 1.5

If TWAIN is not installed, an error code is returned and versionString is set to empty.

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